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UNITED STATES PATENTV OEEIcE.

MATVEI K. MUGHIN, OF RIGrA, RUSSIA.

CENTRIFUGAL MACHINE.

SPECIFICATION forming part of Letters Patent No. 235,797, dated December21, 1880.

Application :ned July 2o, 1880.

To all lwhom t may concern:

Be it known that I, MA'rvEI KosMr'rcH MUOHIN, a subject ofthe Emperor ofRussia, and residing in Riga, Russia, have invented certainImprovementsinCentrifugalMachines, of which the f'ollowing is aspecification.

My invention relates to certain improvements in the construction ofcentrifugal machines for washing, soaking, rinsing, or drying fibrousmaterials, and other purposes, as more fully described hereinafter,reference being had to the accompanying drawings, in which- Figure lis avertical section of my improved centrifugal machine, and Fig. 2 a frontview.

A is the outer cylindrical casing bolted to the uprights of the frame,and through the center of this casing passes the vertical shaft B,adapted at its lower end to a step or bearing in one of the cross-barsof the frame, and having its upper end adapted to a similar bearing inan upper cross-piece. To this vertical shaft is secured the innerperforated drum, D, havA ing a central perforated cylinder or tube, F,around the shaft B, while to the bottom of the drum D is secured theArchimedean screw C, communicating` at its upper end with the interiorof the tube F and opening at its lower end into the space within thelower part of the casing A. This part of the casing is preferablyprovided with a perforated ooring, and below this is a well, N, havingan out-letpipe, Q, while above the partition are preferably arrangedaseries of radial partitions, P, to prevent the shaft, screw, and drumfrom causing by their rotation the swirling of the water introduced intothe casing.

Around the shaft B, at the part where it passes through the bottom ofthe casing, is arranged a tube, E, which is secured to the casing andprojects some distance upward in the casing within the screw and abovethe level of the water when the casing is filled with the usualquantity, so that the outer casing needs no stuffing-box or bearingforthe rotat- (No model.)

ing shaft carrying the drum. This shaft may be driven in any manner thatmay be found convenient. In the drawings I have shown it as driven froma hand-wheel, L, provided with a handle, M, and having a belt passingovera pulley, K, on the shaft J, the latter carrying a groovedfriction-wheel, G, gearing into a corresponding wheel, H, on the shaftB.

1f desired, the outer casing may be made double, so that it may beheated with steam or by other means.

This machine may be used for washin g, rinsing, soaking, or lixiviatingbrous materials, and when the proper supply of liquid has beenpouredinto the casing and the materials placed in the drum the machineis setin motion, so that as the drum rotates the screw G will cause thewater to ascend and by the centrifugal force pass through the goods andthe perforations ofthe drum, to be again drawn up by the screw. When thewashing, rinsing, soaking., or lixiviating is completed the shaft B isturned in the opposite direction, so that the screw C will not draw upthe liquid, and the materials contained in the drum D will thus be driedby the centrifugal action.

I claim as my inventionl. The combination of the stationary easingadapted to contain liquid, and having a central tube, E, with the shaftB, passing through said tube and carrying the drum and ArchimedeanscrewCattached thereto, all substantially as described.

2. The combination of the shaft and rotary drum with the stationary'casing provided with radial partitions P in its lower part7 as and forthe purpose specified. 1

In testimony whereof I have signed my name to this specification in thepresence of two sub scribin g witnesses.

MATVEI KOSMITGH MUGHIN.

Witnesses LUDWAY RAAscHE, W. T. SCHELREGHIN.

